Patch "IB/rxe: double free on error" has been added to the 4.9-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
IB/rxe: double free on error
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ib-rxe-double-free-on-error.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From foo@baz Thu Dec 21 09:02:40 CET 2017
From: Dan Carpenter <[email protected]>
Date: Wed, 8 Mar 2017 08:21:52 +0300
Subject: IB/rxe: double free on error
From: Dan Carpenter <[email protected]>
[ Upstream commit ded260235308f340b979258a4c736e06ba12c747 ]
"goto err;" has it's own kfree_skb() call so it's a double free. We only need to free on the "goto exit;" path.
--- drivers/infiniband/sw/rxe/rxe_req.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/infiniband/sw/rxe/rxe_req.c +1 -1
@@ -726,11 +726,11 @@ next_wqe: ret =rxe_xmit_packet (to_rdev (qp->ibqp.device), qp, &pkt, skb);if (ret) { qp->need_req_skb =1 ; -kfree_skb (skb);rollback_state (wqe, qp, &rollback_wqe, rollback_psn);if (ret == -EAGAIN ) { +kfree_skb (skb);rxe_run_task (&qp->req.task,1 ); goto exit; }
Patches currently in stable-queue which might be from [email protected] are
queue-4.9/bna-integer-overflow-bug-in-debugfs.patch queue-4.9/btrfs-fix-an-integer-overflow-check.patch queue-4.9/ib-rxe-double-free-on-error.patch